Moreover, if the Matrix were a computer program of infinite complexity, no observer (finite or infinite) would have been able to say with any certainty whose a decision was - the Matrix's or the human's. And because the Matrix, for all intents and purposes, is infinite compared to the mind of any single, tube-nourished, individual - it is safe to say that the states of "making a decision" and "appearing to be making a decision" are subjectively indistinguishable. No individual within the Matrix would be able to tell the difference. His or her life would seem to him or her as real as ours are to us. The Matrix may be deterministic - but this determinism is inaccessible to individual minds because of the complexity involved. When faced with a trillion deterministic paths, one would be justified to feel that he exercised free, unconstrained will in choosing one of them. Free will and determinism are indistinguishable at a certain level of complexity. Yet, we KNOW that the Matrix is different to our world. It is NOT the same. This is an intuitive kind of knowledge, for sure, but this does not detract from its firmness. If there is no subjective difference between the Matrix and our Universe, there must be an objective one. Another key sentence is uttered by Morpheus, the leader of the rebels. He says to "The Chosen One" (the Messiah) that it is really the year 2199, though the Matrix gives the impression that it is 1999. This is where the Matrix and reality diverge. Though a human who would experience both would find them indistinguishable - objectively they are different. In one of them (the Matrix), people have no objective TIME (though the Matrix might have it). The other (reality) is governed by it. Under the spell of the Matrix, people feel as though time goes by. They have functioning watches. The sun rises and sets. Seasons change. They grow old and die. This is not entirely an illusion. Their bodies do decay and die, as ours do. They are not exempt from the laws of nature. But their AWARENESS of time is computer generated. The Matrix is sufficiently sophisticated and knowledgeable to maintain a close correlation between the physical state of the human (his health and age) and his consciousness of the passage of time. The basic rules of time - for instance, its asymmetry - are part of the program. But this is precisely it. Time in the minds of these people is program-generated, not reality-induced. It is not the derivative of change and irreversible (thermodynamic and other) processes OUT THERE. Their minds are part of a computer program and the computer program is a part of their minds. Their bodies are static, degenerating in their protective nests. Nothing happens to them except in their minds. They have no physical effect on the world. They effect no change. These things set the Matrix and reality apart.